GR3025744T3 - Method for detecting program execution errors. - Google Patents

Method for detecting program execution errors.

Info

Publication number
GR3025744T3
GR3025744T3 GR970403394T GR970403394T GR3025744T3 GR 3025744 T3 GR3025744 T3 GR 3025744T3 GR 970403394 T GR970403394 T GR 970403394T GR 970403394 T GR970403394 T GR 970403394T GR 3025744 T3 GR3025744 T3 GR 3025744T3
Authority
GR
Greece
Prior art keywords
replicas
coding
distinct
injection
result
Prior art date
Application number
GR970403394T
Other languages
Greek (el)
Inventor
Guillaume Bres
Francois Simon
Original Assignee
Gec Alsthom Transport Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gec Alsthom Transport Sa filed Critical Gec Alsthom Transport Sa
Publication of GR3025744T3 publication Critical patent/GR3025744T3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1479—Generic software techniques for error detection or fault masking
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1497—Details of time redundant execution on a single processing unit
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/28—Error detection; Error correction; Monitoring by checking the correct order of processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/18—Error detection or correction of the data by redundancy in hardware using passive fault-masking of the redundant circuits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
    • G06F2201/83—Indexing scheme relating to error detection, to error correction, and to monitoring the solution involving signatures

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)
  • Retry When Errors Occur (AREA)

Abstract

Method for detecting execution errors in a program, several identical replicas of which are executed in parallel or sequentially, this program comprising in particular instructions consisting of operations involving a simple operator acting on simple operands. Each operation instruction is replaced by several instructions making it possible to perform: - the coding of the operands consisting of input data for the program, by means of a specific coding injection; each coding injection is distinct from the coding injections associated with the other operation instructions within the other replicas, - transformation of the simple operator of this instruction, the transformations corresponding to identical operators within the various replicas being pairwise distinct, - the transcoding of the result obtained by applying the transformed operator to the coded operands, so as to obtain a result in the form of an operand coded by means of the specific coding of the operation instruction intended to use this result, the transcoding being performed by means of a transformation distinct from the transcoding transformations associated with the other operation instructions within the other replicas. The method lastly comprises an operation for decoding the final result of each replica by means of the inverse of a specific decoding injection distinct from the decoding injections of the other replicas. An execution error is flagged if, for certain replicas, the final result cannot be decoded by means of the corresponding inverse injection, and if, among the decoded final results of the other replicas, there does not exist one which is obtained by a predetermined minimum number of the other replicas.
GR970403394T 1992-12-31 1997-12-23 Method for detecting program execution errors. GR3025744T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9215989A FR2700031B1 (en) 1992-12-31 1992-12-31 Method for detecting software execution errors.

Publications (1)

Publication Number Publication Date
GR3025744T3 true GR3025744T3 (en) 1998-03-31

Family

ID=9437342

Family Applications (1)

Application Number Title Priority Date Filing Date
GR970403394T GR3025744T3 (en) 1992-12-31 1997-12-23 Method for detecting program execution errors.

Country Status (7)

Country Link
EP (1) EP0606803B1 (en)
AT (1) ATE158877T1 (en)
DE (1) DE69314309T2 (en)
DK (1) DK0606803T3 (en)
ES (1) ES2106305T3 (en)
FR (1) FR2700031B1 (en)
GR (1) GR3025744T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10063350C1 (en) * 2000-12-19 2002-07-18 Siemens Ag Process for monitoring data processing and transmission
US10216521B2 (en) 2017-06-20 2019-02-26 Nvidia Corporation Error mitigation for resilient algorithms

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4964126A (en) * 1988-09-30 1990-10-16 Massachusetts Institute Of Technology Fault tolerant signal processing machine and method
EP0483437A1 (en) * 1990-10-31 1992-05-06 International Business Machines Corporation Processing system having device for testing the correct execution of instructions

Also Published As

Publication number Publication date
DE69314309D1 (en) 1997-11-06
ATE158877T1 (en) 1997-10-15
ES2106305T3 (en) 1997-11-01
DE69314309T2 (en) 1998-01-29
DK0606803T3 (en) 1998-05-25
FR2700031B1 (en) 1995-02-10
EP0606803A1 (en) 1994-07-20
FR2700031A1 (en) 1994-07-01
EP0606803B1 (en) 1997-10-01

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